But if I cut the pipe leading to the faucet then merely shut the cupboard door, my cupboard is not going to be very happy. I think he's comment was that the ge

But if I cut the pipe leading to the faucet then merely shut the cupboard door, my cupboard is not going to be very happy. I think he's comment was that the gel isn't necessarily sealing the arteries/veins, only the 'hole in your leg' - the assumption being this could still result in fatal internal bleeding - that more traditional methods such as pressure on the wound or a tourniquet could have had better success with.